基于ARM微处理器的谷物硬度仪控制器设计.pdf

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1、机床与液压Jun．2013HydromechatronicsEngineeringVo1．41No．12OOl：10．3969／j．issn．1001—3881．2013．12．012ARMMicroprocessor—basedControllerDesignofaKernelHardnessTesterCAOYi，ZANGYi，SHIQingsheng，LUKeSchoolofElectricalEngineering，HenanUniversityofTechnology，Zhengzhou450001，ChinaAbstract：Performanceeficient

2、processorshavebecomeincreasinglyimportantformechatronicswithnumerousactuatorsandsensors．Thereforethispaperimplementsa32-bitlow-powerARMmicroprocessorintothedesignofanovelkernelhardnesstesterequippedwithmulti--sensorcapa·-bilities．Afterabriefintroductionofthetestermechanism．anembeddedARMmicr

3、oprocessorisusedtoaccomplishthedataacquisitionofaIoadsensorandthepositioncontrolofanACservomotor．UsingQTbasedonLinuxforsoftwaredesign．itispossibletodisplaydatacurvesonLCDandcompletecomplexdataprocessingintime．Finally，someexperimentresultsofmeasuringdataarepresentedingraphic，whichverifiesthe

4、successoftheproject．Keywords：hardnesstester，embeddedLinux，ARMmicroprocessor，Qt／EmbededGUIofacollectior／ofkernels．Inthearticlewrittenby1．IntroductionGALANDEeta1．[4]，manytestingmethodswerelistedandthecharacteristiesofeachonewereana-Numerousfoodsareproducedfromwheat，andlysedindetail．Inthesemet

5、hods．theendospermtex．grainhardnesshasbeendescribedtohaveanimpacttureortherelativehardnessorsoftnessofagraincanongrainend—usevalue，andinparticularfordry—bedefinedasameasureoftheresistancetodeforma．millingperformance．Inflourprocessingindustry，tionbasedontheSingleKernelCharacterizationSys—grai

6、nhardnessisusuallyusedasagradingindextoten(SKCS)．Sofar，theSKCStestingmethodologydeterminethetypeofwheat[1—2]．Grainhardnessisusedcommonlyintheworld．However，Standardisnormallyinfluencedbyvariousenvironmental，Deviations(SDs)forallSKCStraitsarenotcorrela．physicalandchemicalfactorslikekernelprot

7、ein，vit—tedwithanyofthewheattraits．Thereforeaveragereousnessofgrain，kernelsize，water—solublepento—hardnessisabetterindicatorofwheatkernelquality．sans，moisturecontentandlipidcontent[3]．Inthepape~[5—6]andthepatent[7]，ano—Correspondingly，anumberofattemptsha